Each of the five dancers in Quartet has their own range of motions and movements, yet at times, they share phrases, acting as one. This aspect of the choreography is where Cunningham chose the title for this piece. Often described as a dark and tragic work, Quartet is very much about emotional and tangible dependencies and restrictions. David Tudor’s chilling music was a live electronic composition for “six homogeneous voices and one wandering voice,” and Mark Lancaster’s somber costumes were in sooty hues of crimson, blue and green.